<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./vue.js"></script>
</head>
<body>
    <div id="app">
        <!-- 
            v-for 列表渲染(循环节点操作)
            语法格式：v-for="(元素，索引) in 需要循环的变量"

            key:"xxxx"
         -->
        <!-- 循环一维数组 -->
        <ul>
            <li v-for="(item,index) in arr">
                {{index}} == {{item}}
            </li>
        </ul>
        <ul>
            <li v-for="val in arr">
                {{val}}
            </li>
        </ul>

        <!-- 循环数组对象 -->
        <ul>
            <li v-for="(item,index) in brr">
                {{index}}--{{item.name}}--{{item.age}}
            </li>
        </ul>

        <!-- 循环对象 item元素  key键  ind索引 -->
        <ul>
            <li v-for="(item,key,ind) in obj">
                {{ind}}--{{key}}--{{item}}
            </li>
        </ul>
    </div>
</body>
<script>
    new Vue({
        el:"#app",
        data:{
            arr:["刘备","关羽","张飞"],
            brr:[
                {id:1,name:"狗蛋",age:20},
                {id:1,name:"翠花",age:21},
                {id:1,name:"旺财",age:20}
            ],
            obj:{
                id:1,name:"来福",age:20
            }
        }
    })
</script>
</html>